React Feature Developer Guide feature development with React architecture patterns. Extends: Generic Feature Developer - Read base skill for development workflow, scope assessment, and build vs integrate decisions. React Architecture Project Structure State Management Patterns Zustand Store (Preferred) Zustand Selectors (Performance) Context vs Zustand Decision | Use Context | Use Zustand | | ------------------------------ | -------------------------- | | Theme, locale (rarely changes) | Frequently updated data | | Authentication state | Complex state with actions | | Provider already exists…